More on Little Girls Minnie Mouse Nerd Costume: Let your little girl look her nerdy best in this Minnie Mouse Nerd Costume! The Peter Pan collar dress has oh-so-sweet puff sleeves and a flirty red plaid skirt. With a wide buckle belt, attached suspenders and polka dot tie, this outfit is an A+! Get on the Best Dressed list with smart accessories like oversized black nerd glasses, a round Minnie Mouse pin, and white fingerless gloves. Your studious sweetheart wouldn't be Minnie without her signature ears, and these are attached to a covered black headband and a big red plaid bow. Too cute!